Pesticides for the management of the broad mite (Polyphagotarsonemus latus, Banks.) (Acarina; Tarsonemidae), in green pepper (Capsicum annuum L.), under protected conditions in Nicaragua

Abstract

The broad mite Polyphagotarsonemus latus (Banks) is the main pest causing economic losses in green pepper in San Isidro, Matagalpa. Based upon this problem, a study was carried out with the objective of evaluating pesticides and identifying the most eff ective treatment for the management of the broad mite in the green pepper variety “Tres cantos” under protected conditions The trial was carried out from May to July 2016. Evaluated treatments were, garlic+chili+soap, Sulfo-calcium broth, Oberon® and Abamectina®, compared to the control treatment that was only water use, the evaluated variables were, broad mite number per (kg ha-1) and some economic variables such as partial budget analysis, dominance analysis and marginal rate of return analysis, the experimental design was a randomized complete block (BCA) with three replicates. Results show that the Oberón® and garlic+chili+ soap treatment, presented the best eff ect on the management of the broad mite, obtaining smaller number of individuals per plant, and the lower incidence, as well these two treatment presented, the highest commercial yields, the best marginal rate of return was achieved by the treatment garlic+Chili+soap, followed by Oberón®.